Torch.



H. BROUSSEAU.

TORCH. APPLIOATION FILED Mms, 1912.

1,088,204. Patented Feb. 24, 1914L y. fw H1 4H u 7 f al; M 40 Y 45 Z 58a 4&6 .Z757 .j 1) ||y I V @J2 T30 /3 o W "WM 4 ,Sn/nemici 62)@ 'QM ffMSSw/t y 951, his Gitte/anew HARRY BROUSSEAU, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND IVIESNE ASSIGNMENTS, TO THE STANDARD WELDING le EQUIPMENT CORPORATION, OF NEW YORK, N. Y., A CORPORATION Ol? NEW YORK.

TORCH.

Specification of Letters Patent.

Patented Feb. 23d, lill/ll.

Application filed January 5, 1912. Serial No. 669,578.

Be it known that l, Hanni' Biiotissnan, a citizen ot the United States, and a resident of New York. borough ot' Brooklyn, county of Kings, and State of New York, have invented certain new and nse'lul.lmpro'vements in` Torches, ot which the following is a full, clear. and exact description.

This invention relates more particularly to a torch adapted for cutting and welding metal. i

The primary object of the invention is to p rovide simple means whereby the `gaseous supply for cutting purposes may be causedY to pass centrally through the torch and ther said means so constructed that it may be adjusted and made to coperate with the means communicating with the source of supply tor the weldingY gases. so that thev supply of the said latter ,L'ases or a part of them may have its supply regulated during such adjustment thereby quickly @inventingr the torch troni a device for welding purposes to one tor cuttine or vice versa.

Another object ot the invention is to provide a simple and eflicient torch or like arti cle in which a valve or similar device may be utilized to automatically shut ott' the acetylene gas or fuel supply in case of a Vback flash and thereby prevent. the ignition I the easeswvithin the torch as often occurs and which results iu loss oit-gas and time due to the necessity for resetting the valves controlling' the ons supply.

Other objects of the invention are to provide a device in which a plurality ot nozzles may he interclnineeably used in connection with the head: to provide a nozzle which may be rotatably held on the head or immovably xed thereto; and to provide a device which is simple in construction and `which may be readily made and assembled.

A further object. of the invention is to provide a valvel which may be supported in a part of the device so as to be freely m0vable therein and which coperates with a part of its support toassist in mixing the acetylene gas or fuel supply with the oxygen uns.

With these and other objects inview, the invention will be hereinafter more particularly described with reference to the accom panying,r drawings, lwhich form a part of ed portion is engaged by tl this specification, and will. then be pointed out in the claims at the end of the description.

ln the drawings, Figure l is a sectional view, partly in elevation, ot' one form of' torch embodying my invention. Fig. 2 is a sectional plan taken on the line lI-lI of Fig. l, the head being removed. Fie". 3 is a sectional plan taken on th linel lll-dll ot Figi l, the coupling' nut being removed; and 4 is a fragmentary detail elevation of the valve and supporting tube, the valve being moved slightly upward trom its normal position.

The head or casinghas a substantially cylindrical part l1, the lower portion of which is threaded, as at 12, and this thread-r lie threaded part of' a coupling nut 13. `This coupling nutlS has an inwardly extending' flange 14 which is adapted r/onengag'e under a shoulder or tlancfe portieri, 'l5 of a nozzle 16. The noz zle, 1G may comprise two members 17 and t8, the latter forming the nozzle tip and having,r a threaded stem portion, 19 which engages a threaded opening' in thev member 'l'l' to hold the two parts properly together. The method ot' holding the nozzle'to the casing may be of any' suitable constructioni A valve or device 20 is held to slide freely upon a tubular member or pipe 2l, and said valve is located within a recess or chamber 22 formed in the upper portion o't the nozzle 16. The tubular member 2l is supported by a part of the stem portion 2l of a cylindrical member 25 which is arranged within the chamber QG of the head 10. and said member 25 has its lower part extending slightly beyond the casing l() so as to rest or be sup' ported in the upper portion of the nozzle 16. The member 25 u'iay have two parts 2l and Q8, the larger part fitting neatly within the head l() and the smaller part Q4 having its upper end abutting' against a shoulder formed by the upper part, ot the (hamber 26 against which the said part 24 ot the member 25 may be seated and have ground joinb therewith, if desired.A The member 25 has a tapering' portion which jointsl the portions 24 and 28 through which are a series of openings 29 which connnunicate with the chamber 2G and with an interior chamber 30 formed by recessing the part 28 of the.

tif)

v forms substantially a continuation or' the .This valve has a cylindrical body portion,

' shoulder member The chamber 26 within the. l head l() communicates with a channe 30W and this channel connected to a source ot acetylene gas supply through a pipe 3l so that the acetylene gas may pass through said pipe into the chamber 2G through openings 29 into the inner chamber 30 and about the Valve Q0.

The valve or device 2O has a valve portion 32 which adapted when the said valve device is forced upward as will be presently described, to engage a seat formed at the lower end of the part F38 of the member 25 and thereby serve to shut ott' the supply of acetylene. gas or to permit the gas to low when in the position shown in the drawings.

`nt'roin which projects a plurality of lugs or wings 34 which are adapted to rest upon a shoulder 355 formed at the junction between the tapering part 36 ot' 'the chamber 2Q and the straight portion 87 of said chamber. The valve is guided not only on its support-V ing tube 2l butJ also by the straight cylindrical portion 37 ot'. the chamber formed in the nozzle and is contined in its movement along its support by the Valve seat 2325 and said The lower part ot the valve vdevice 2O is tapered to correspond to the ta pering portion of the chamber 2Q and the lower part; ot' the valve supporting tube 2l is also correspondingly tapered at 37a and tapered part ot the valve when in the position shown in liig. .ll rlfhc tube or member 2l is support d in the part 24 of the cylindrical nicntber 25 and has its open end communicating with a channel 3S, the latter communicating with a pipe 23S leading to a source of oxygen supply. ,As usual in devices of this ltindthe` pressure oflthe oxygen supply is somewhat; greater than the pres sure of the fuel supply or acetylene gas and 'the extent of these pressures or their difference in 'pressures nunr be varied according to the retipiireinents the tool.

it. will be seen that the oxygen gas may pass through the tubular suijpth'ting incruber 21 of the valve and that the oxygen in passing through will unite with the acetylene gas in its passage around the 'faire with- L, and owing to the tapering in the chamber Q portion 36 ot' the chamber QQ and ot the vvalve as well as the end ot the supporting tube 2],.thc acetylene gas wiilbe nuule to pass in the torni ot a sheet. and uniti` with the oxygen s as it passes t'roin said tube l 2l, thus causing the two to thoroughly ronii mingle. The mirized gas will pass througlh a channel 39 centrally located in thc now/.lc t 116 to be ignited ai'tcr passing troni the chaunel in ythe usual way. ln caso a back lash takes place wherelu a pressure is createdy which is greater than the pressure ol' the .acetylene (vas, such pressure will cause the vrlve Q0 to more along its support 21 and to cause the valve portion 3L) to engage the, Valvev seat 253 and shut oli' the supply ot acetylene gas and thereby prevent the igni-` tion of the gases within the torch as would otherwise occur unless provision of some hind provided. A spring 39 is arranged around the tube 2l and within the Valve 20, and said spring tends normally to force thc valve to its seat. and thereby assist. the pressure due to a back flash to shut otll the su ply of acetylene gas, the spring being liglit enough to permit the valve to be unseated during the. normal flow of the acetylene gas. The springr also serves to seat the valve when the acetylene is shut ott and thereby pre sents the oxygen gas from passing back into the source of acetylene gas supply in case the oxygen gas is turned on irst. By this means all loss of gas and time incidcnt`to the resetting of the valves and the likelihood of having the torch injured by the heat llame is avoided.

To convert the tool to adapt the same for euttingpurposes, I provide an additional txmnection for oxygen gas which supply of gas may be of greater pressure than the supply or, the gases used for w'eldin 'purposes. This supply of a gaseous bo y for cutting purposes may be 'variously controlled. fis shown the head 10 is somewhat reduced .in diameter as at 40, and at the upper end thereof .is threaded at. 41, and engaging the threaded portion is a packing nut or gland 42. A tubular stem 4.3 passes through the packing nut 42 around'which may be a' suitable packing, as at, 44, and on the end of said stem is a thumb piece or finger part 45 by which the stein 43 may be rotated. The stern 43 has an enlarged part 46 which may be threaded so as to engage a threaded vopening in the head l() and by which the stein may be adjusted lengthwise of the head when the thumb piece 45 is rotated. rlhe tubular stem is provided with a plurality of slots or openings 47 which are adapted to (.'oinmunicate witha chamber 48, and this chamber cmuninnicates with an oxygen .supply pipe 4.9, so that oxygen from the pipe t9 may pass to the chamber t8 and through the lslots l? into and along the tubular stern -t--. The tubular stent 4? has a reduced tubular part 50 which extends to the nrt/rzte tip and joins the la rger part of said stein at or about the tapering portion 37 of the valve supporting tube 2l. lThe stein 43 i is provided with a tapered portion 51 forming a valve at', the point where the part 50 ot the stein joins the larger part. rl`his Valve. 5l, is adapted when the stein is adjuhted to increase or diminish the space and opening in the end ST ot' the tube 2l to regulate the oxygen supply through the pipe 389. The -stein t3 is centrally located within the nozzle 1G and head 10 and the stream of oxygen Lneelcce justed to control the supply of oxygen of the welding gases by simply adjusting the stem 43.

It Will be understood that' the pipes 3l, 8a and 49 may be connected to or be supported by a handle or any other suitable means (not shown) to which connection be made to the proper source of supply for the gases, that these pipes may be independently controlled by valves or other suit# ablevmeans (not shown), and that any gas or combination of gases may be usedwhere such gases may be employed in a device of this kind.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:-

l. In a device of the character described, a nozzle having a passage in which gases are adapted to be mixed, means forsupplying oxygen and acetylene gas to said passage, a valve located at the point of mixture of said `gases adapted to automatically shut od the supply of acetylene gas in case of back iash, and centrally disposed means for inf dependently supplying oxygen ,for cutting purposes.

2. YIn a device of the character described, a nozzle having a passage in which gases are adapted tobe mixed, means for supplying oxygen and acetylene gas to said passage, valve freely movable within the vdevice located at the point of mixture of said and adapted to automatically shut on.E the supply of acetylene gas, and adjustable means for independently supplying oxygen for cutting purposes.

3. In a device of the character described a nozzle haring a mixing passage, means for supplying oxygen and acetylene gas thereto, a' freely movable valve located at the point of mixture of said guses'uud adapted to automatically shut olii the .supply of acct gas, and means passing tl'lrou'gh the valve for independently supplying oxygen to the nozzle for cutting pmposes.

4. In a device of the character described a nozzle having a mixing passage, means for supplying tivo different gases thereto, a valve located at thepoint of mixture of said gases and adapted to automatically shut ol the supply oi. one ol' the gases, and centrally disposed means passing through the valve for independently silpj'ilying va gas to the nozzle for cutting purposes. Y

5. In a device of the character described a nozzle having a mixing passage, means 'for supplyingr oxygen and acetylene gas thereto, a valve located at the point ol' mixture ol said gases and adapted to shut off the lsupply of acetylene gas, and centrally posed and adjustable means for supplying a stream ol' oxygen to the nozzle for cutting purposes and for regulating the supply of acetylene gas.

6. In a device4 ott the character described, a head, a nozzle communicating therewith, a substantially cylindrical member located within the head and provided with a valve seat, a tubular member supported by said cylindrical member, valve having a part thereof tapered and having a valve portion adapted the seat clthe cylindrical member, means ilor supplying oxygen gas to the tubular member and acetylene within the cylindrical member about said tubular member, and an adjustable centrally disposed stem adapted to convey a cutting stream of oxygen under greater pressure to the nozzle tip.

f?. In a device oit thc character described, a head., a nozzle communicating' therewith, a. substantially cylindrical. member located Within the head and provided with c, valve seat, a tubular member supported. in said member, a device having a. part thereoil' tapered and having a valve portion adapted to the seatcn thecylindrical member, means for supplying oxygen gas to the tubular member and acetylene gas Within the i'irst-nientidned member about tubular member, and an adjustable centrally disposed stero adapted to convey -a cutting stream ci? under greater pres sure to the nozsle tip.

8. In a device of the character described, a. head, a nozzle connininicating therewith, a substantially cylindrical iexnber located within the head and provided with a valve seat, tubular member supported in said cylindrical member, a valve freely slidable on said tubular member and having a part thereof tapered and a valve portion adapted to engage the seat on the flrst-incntioned mein, er, means lor supplyingoxygen gas to the tubular n'lexnber and acetylene gas within the cylindrical member about said tubular member, and a centrally disposed stexnadapted to convey a cutting stream of oxygen under greater pressure to the nozzle tip.

9. ln a device of character described, a head, a nozzle couinuinicating therewith and having a chamber with a tapered por-- tion at tl'le'uppcr part thereofand a channel therethrough, a cylindrical member having au inner chamber and provided with a valve seat, means l'or supplying acetylene` gas to the Achznnber within the cylindrical member, supporting tube having a ,tapered lowercnd, means :lormsupplying oxygen gas to said supporting tube, a valve having a cylindrical liv/ly and a valve portion adaptz ed to engage,1 the valve scat and having a tapered body lo assist in mixing the acetylene and oxygen gases, said valve being free to move a limited distance along the Elli Zilli tubular support, and a centrally disposed and adjustable tubular stem having means to control'the supply of the oxygen gas for welding purposes and adapted to convey oxygen therethrough to the nozzle tip for cutting purposes.

10. ln a device of the character described, a head, a nozzle communicating therewith t and having a chamber with a tapered portion at the upperpart .thereof and a channel therethrough, a member having an inner chamber, means for supplying acetylenegas to the chamber Within said member, a tube having a tapered lower end, means for supplying1 oxygen gas to said tube,and a centrally disposed and adjustable tubular stem `v having means to control the supply of the Yparts of relatively different sizes centrally oxygen gas for weldingjurposes and adapts ed to convey oxygen to t e nozzle.

' 11. In a device of the character described, a head havinga threaded opening, a nozzle communicating with the head, means for supplying oxygen and acetylene gas for welding purposes, an. independent source of oxygen supply, a tubular stem having two disposed within` the head and the nozzle, said stem having mea-ns Acommunicating with the source of oxygen supply for supplying oxygen gas to said stem and having a threaded portion intermediate its ends en gaging the threaded opening in the head by which the said stem may be adjusted, a finger portion for adjusting the said stem, and a valve part on the stem for regulating 'the supply of oxygen used for welding purl within the head and the nozzle, si'd stem 45 having means communicating with the source of independent oxygen supply, means for adjusting the' said stern, and a. valve part on theV stem for regulating the supply of oxygen.- used for welding purposes.

13. A device of the character described,

comprising a nozzle member, a head, a.

source of gas supply, avalve interposed between the nead and the nozzle memberl and adapted to shut off the source of gas supply, and a spring tending normally to force the valve to its seat. j l

This specification signed and witnessed this 3rd day of January, A. D. 1912.

e j HARnY'BRoUssnAU.

Witnesses:

FRANCES IGN-REICH, G. BARTnLs.

l y 1. tlaltttlillllllllll 

